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goma / wine / refs/tags/wine-990426 / . / controls / combo.c
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/*
* Combo controls
*
* Copyright 1997 Alex Korobka
*
* FIXME: roll up in Netscape 3.01.
*/
#include <string.h>
#include "winuser.h"
#include "wine/winuser16.h"
#include "sysmetrics.h"
#include "win.h"
#include "spy.h"
#include "user.h"
#include "heap.h"
#include "combo.h"
#include "drive.h"
#include "debug.h"
#include "tweak.h"
DEFAULT_DEBUG_CHANNEL(combo)
/* bits in the dwKeyData */
#define KEYDATA_ALT 0x2000
#define KEYDATA_PREVSTATE 0x4000
/*
* Additional combo box definitions
*/
#define CB_GETPTR( wnd ) (*(LPHEADCOMBO*)((wnd)->wExtra))
#define CB_NOTIFY( lphc, code ) \
(SendMessageA( (lphc)->owner, WM_COMMAND, \
MAKEWPARAM((lphc)->self->wIDmenu, (code)), (lphc)->self->hwndSelf))
#define CB_GETEDITTEXTLENGTH( lphc ) \
(SendMessageA( (lphc)->hWndEdit, WM_GETTEXTLENGTH, 0, 0 ))
/*
* Drawing globals
*/
static HBITMAP hComboBmp = 0;
static UINT CBitHeight, CBitWidth;
/*
* Look and feel dependant "constants"
*/
#define COMBO_XBORDERSIZE() ( (TWEAK_WineLook == WIN31_LOOK) ? 0 : 2 )
#define COMBO_YBORDERSIZE() ( (TWEAK_WineLook == WIN31_LOOK) ? 0 : 2 )
#define COMBO_EDITBUTTONSPACE() ( (TWEAK_WineLook == WIN31_LOOK) ? 8 : 0 )
#define EDIT_CONTROL_PADDING() ( (TWEAK_WineLook == WIN31_LOOK) ? 0 : 1 )
/***********************************************************************
* COMBO_Init
*
* Load combo button bitmap.
*/
static BOOL COMBO_Init()
{
HDC hDC;
if( hComboBmp ) return TRUE;
if( (hDC = CreateCompatibleDC(0)) )
{
BOOL bRet = FALSE;
if( (hComboBmp = LoadBitmapA(0, MAKEINTRESOURCEA(OBM_COMBO))) )
{
BITMAP bm;
HBITMAP hPrevB;
RECT r;
GetObjectA( hComboBmp, sizeof(bm), &bm );
CBitHeight = bm.bmHeight;
CBitWidth = bm.bmWidth;
TRACE(combo, "combo bitmap [%i,%i]\n", CBitWidth, CBitHeight );
hPrevB = SelectObject16( hDC, hComboBmp);
SetRect( &r, 0, 0, CBitWidth, CBitHeight );
InvertRect( hDC, &r );
SelectObject( hDC, hPrevB );
bRet = TRUE;
}
DeleteDC( hDC );
return bRet;
}
return FALSE;
}
/***********************************************************************
* COMBO_NCCreate
*/
static LRESULT COMBO_NCCreate(WND* wnd, LPARAM lParam)
{
LPHEADCOMBO lphc;
if ( wnd && COMBO_Init() &&
(lphc = HeapAlloc(GetProcessHeap(), 0, sizeof(HEADCOMBO))) )
{
LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
memset( lphc, 0, sizeof(HEADCOMBO) );
*(LPHEADCOMBO*)wnd->wExtra = lphc;
/* some braindead apps do try to use scrollbar/border flags */
lphc->dwStyle = (lpcs->style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL));
wnd->dwStyle &= ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
/*
* We also have to remove the client edge style to make sure
* we don't end-up with a non client area.
*/
wnd->dwExStyle &= ~(WS_EX_CLIENTEDGE);
if( !(lpcs->style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
lphc->dwStyle |= CBS_HASSTRINGS;
if( !(wnd->dwExStyle & WS_EX_NOPARENTNOTIFY) )
lphc->wState |= CBF_NOTIFY;
TRACE(combo, "[0x%08x], style = %08x\n",
(UINT)lphc, lphc->dwStyle );
return (LRESULT)(UINT)wnd->hwndSelf;
}
return (LRESULT)FALSE;
}
/***********************************************************************
* COMBO_NCDestroy
*/
static LRESULT COMBO_NCDestroy( LPHEADCOMBO lphc )
{
if( lphc )
{
WND* wnd = lphc->self;
TRACE(combo,"[%04x]: freeing storage\n", CB_HWND(lphc));
if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
DestroyWindow( lphc->hWndLBox );
HeapFree( GetProcessHeap(), 0, lphc );
wnd->wExtra[0] = 0;
}
return 0;
}
/***********************************************************************
* CBForceDummyResize
*
* The dummy resize is used for listboxes that have a popup to trigger
* a re-arranging of the contents of the combobox and the recalculation
* of the size of the "real" control window.
*/
static void CBForceDummyResize(
LPHEADCOMBO lphc)
{
RECT windowRect;
GetWindowRect(CB_HWND(lphc), &windowRect);
/*
* We have to be careful, resizing a combobox also has the meaning that the
* dropped rect will be resized. In this case, we want to trigger a resize
* to recalculate layout but we don't want to change the dropped rectangle
* So, we add the size of the dropped rectangle to the size of the control.
* this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
* message.
*/
SetWindowPos( CB_HWND(lphc),
(HWND)NULL,
0, 0,
windowRect.right - windowRect.left,
windowRect.bottom - windowRect.top +
lphc->droppedRect.bottom - lphc->droppedRect.top,
SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
}
/***********************************************************************
* CBGetTextAreaHeight
*
* This method will calculate the height of the text area of the
* combobox.
* The height of the text area is set in two ways.
* It can be set explicitely through a combobox message of through a
* WM_MEASUREITEM callback.
* If this is not the case, the height is set to 13 dialog units.
* This height was determined through experimentation.
*/
static INT CBGetTextAreaHeight(
HWND hwnd,
LPHEADCOMBO lphc)
{
INT iTextItemHeight;
if( lphc->editHeight ) /* explicitly set height */
{
iTextItemHeight = lphc->editHeight;
}
else
{
TEXTMETRICA tm;
HDC hDC = GetDC(hwnd);
HFONT hPrevFont = 0;
INT baseUnitY;
if (lphc->hFont)
hPrevFont = SelectObject( hDC, lphc->hFont );
GetTextMetricsA(hDC, &tm);
baseUnitY = tm.tmHeight;
if( hPrevFont )
SelectObject( hDC, hPrevFont );
ReleaseDC(hwnd, hDC);
iTextItemHeight = ((13 * baseUnitY) / 8);
/*
* This "formula" calculates the height of the complete control.
* To calculate the height of the text area, we have to remove the
* borders.
*/
iTextItemHeight -= 2*COMBO_YBORDERSIZE();
}
/*
* Check the ownerdraw case if we haven't asked the parent the size
* of the item yet.
*/
if ( CB_OWNERDRAWN(lphc) &&
(lphc->wState & CBF_MEASUREITEM) )
{
MEASUREITEMSTRUCT measureItem;
RECT clientRect;
INT originalItemHeight = iTextItemHeight;
/*
* We use the client rect for the width of the item.
*/
GetClientRect(hwnd, &clientRect);
lphc->wState &= ~CBF_MEASUREITEM;
/*
* Send a first one to measure the size of the text area
*/
measureItem.CtlType = ODT_COMBOBOX;
measureItem.CtlID = lphc->self->wIDmenu;
measureItem.itemID = -1;
measureItem.itemWidth = clientRect.right;
measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
measureItem.itemData = 0;
SendMessageA(lphc->owner, WM_MEASUREITEM,
(WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
iTextItemHeight = 6 + measureItem.itemHeight;
/*
* Send a second one in the case of a fixed ownerdraw list to calculate the
* size of the list items. (we basically do this on behalf of the listbox)
*/
if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
{
measureItem.CtlType = ODT_COMBOBOX;
measureItem.CtlID = lphc->self->wIDmenu;
measureItem.itemID = 0;
measureItem.itemWidth = clientRect.right;
measureItem.itemHeight = originalItemHeight;
measureItem.itemData = 0;
SendMessageA(lphc->owner, WM_MEASUREITEM,
(WPARAM)measureItem.CtlID, (LPARAM)&measureItem);
lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
}
/*
* Keep the size for the next time
*/
lphc->editHeight = iTextItemHeight;
}
return iTextItemHeight;
}
/***********************************************************************
* CBCalcPlacement
*
* Set up component coordinates given valid lphc->RectCombo.
*/
static void CBCalcPlacement(
HWND hwnd,
LPHEADCOMBO lphc,
LPRECT lprEdit,
LPRECT lprButton,
LPRECT lprLB)
{
/*
* Again, start with the client rectangle.
*/
GetClientRect(hwnd, lprEdit);
/*
* Remove the borders
*/
InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
/*
* Chop off the bottom part to fit with the height of the text area.
*/
lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
/*
* The button starts the same vertical position as the text area.
*/
CopyRect(lprButton, lprEdit);
/*
* If the combobox is "simple" there is no button.
*/
if( CB_GETTYPE(lphc) == CBS_SIMPLE )
lprButton->left = lprButton->right = lprButton->bottom = 0;
else
{
/*
* Let's assume the combobox button is the same width as the
* scrollbar button.
* size the button horizontally and cut-off the text area.
*/
lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
lprEdit->right = lprButton->left;
}
/*
* In the case of a dropdown, there is an additional spacing between the
* text area and the button.
*/
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
{
lprEdit->right -= COMBO_EDITBUTTONSPACE();
}
/*
* If we have an edit control, we space it away from the borders slightly.
*/
if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
{
InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
}
/*
* Adjust the size of the listbox popup.
*/
if( CB_GETTYPE(lphc) == CBS_SIMPLE )
{
/*
* Use the client rectangle to initialize the listbox rectangle
*/
GetClientRect(hwnd, lprLB);
/*
* Then, chop-off the top part.
*/
lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
}
else
{
/*
* Make sure the dropped width is as large as the combobox itself.
*/
if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
{
lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
/*
* In the case of a dropdown, the popup listbox is offset to the right.
* so, we want to make sure it's flush with the right side of the
* combobox
*/
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
lprLB->right -= COMBO_EDITBUTTONSPACE();
}
else
lprLB->right = lprLB->left + lphc->droppedWidth;
}
TRACE(combo,"\ttext\t= (%i,%i-%i,%i)\n",
lprEdit->left, lprEdit->top, lprEdit->right, lprEdit->bottom);
TRACE(combo,"\tbutton\t= (%i,%i-%i,%i)\n",
lprButton->left, lprButton->top, lprButton->right, lprButton->bottom);
TRACE(combo,"\tlbox\t= (%i,%i-%i,%i)\n",
lprLB->left, lprLB->top, lprLB->right, lprLB->bottom );
}
/***********************************************************************
* CBGetDroppedControlRect
*/
static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
{
CopyRect(lpRect, &lphc->droppedRect);
}
/***********************************************************************
* COMBO_WindowPosChanging
*/
static LRESULT COMBO_WindowPosChanging(
HWND hwnd,
LPHEADCOMBO lphc,
WINDOWPOS* posChanging)
{
/*
* We need to override the WM_WINDOWPOSCHANGING method to handle all
* the non-simple comboboxes. The problem is that those controls are
* always the same height. We have to make sure they are not resized
* to another value.
*/
if ( ( CB_GETTYPE(lphc) != CBS_SIMPLE ) &&
((posChanging->flags & SWP_NOSIZE) == 0) )
{
int newComboHeight;
newComboHeight = CBGetTextAreaHeight(hwnd,lphc) +
2*COMBO_YBORDERSIZE();
/*
* Resizing a combobox has another side effect, it resizes the dropped
* rectangle as well. However, it does it only if the new height for the
* combobox is different than the height it should have. In other words,
* if the application resizing the combobox only had the intention to resize
* the actual control, for example, to do the layout of a dialog that is
* resized, the height of the dropdown is not changed.
*/
if (posChanging->cy != newComboHeight)
{
lphc->droppedRect.bottom = lphc->droppedRect.top + posChanging->cy - newComboHeight;
posChanging->cy = newComboHeight;
}
}
return 0;
}
/***********************************************************************
* COMBO_Create
*/
static LRESULT COMBO_Create( LPHEADCOMBO lphc, WND* wnd, LPARAM lParam)
{
static char clbName[] = "ComboLBox";
static char editName[] = "Edit";
LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
else if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
lphc->self = wnd;
lphc->owner = lpcs->hwndParent;
/*
* The item height and dropped width are not set when the control
* is created.
*/
lphc->droppedWidth = lphc->editHeight = 0;
/*
* The first time we go through, we want to measure the ownerdraw item
*/
lphc->wState |= CBF_MEASUREITEM;
/* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
if( lphc->owner || !(lpcs->style & WS_VISIBLE) )
{
UINT lbeStyle;
/*
* Initialize the dropped rect to the size of the client area of the
* control and then, force all the areas of the combobox to be
* recalculated.
*/
GetClientRect( wnd->hwndSelf, &lphc->droppedRect );
CBCalcPlacement(wnd->hwndSelf,
lphc,
&lphc->textRect,
&lphc->buttonRect,
&lphc->droppedRect );
/*
* Adjust the position of the popup listbox if it's necessary
*/
if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
{
lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
/*
* If it's a dropdown, the listbox is offset
*/
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
ClientToScreen(wnd->hwndSelf, (LPPOINT)&lphc->droppedRect);
ClientToScreen(wnd->hwndSelf, (LPPOINT)&lphc->droppedRect.right);
}
/* create listbox popup */
lbeStyle = (LBS_NOTIFY | WS_BORDER | WS_CLIPSIBLINGS) |
(lpcs->style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
if( lphc->dwStyle & CBS_SORT )
lbeStyle |= LBS_SORT;
if( lphc->dwStyle & CBS_HASSTRINGS )
lbeStyle |= LBS_HASSTRINGS;
if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
lbeStyle |= LBS_NOINTEGRALHEIGHT;
if( lphc->dwStyle & CBS_DISABLENOSCROLL )
lbeStyle |= LBS_DISABLENOSCROLL;
if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
lbeStyle |= WS_CHILD | WS_VISIBLE;
else /* popup listbox */
lbeStyle |= WS_POPUP;
/* Dropdown ComboLBox is not a child window and we cannot pass
* ID_CB_LISTBOX directly because it will be treated as a menu handle.
*/
lphc->hWndLBox = CreateWindowExA(0,
clbName,
NULL,
lbeStyle,
lphc->droppedRect.left,
lphc->droppedRect.top,
lphc->droppedRect.right - lphc->droppedRect.left,
lphc->droppedRect.bottom - lphc->droppedRect.top,
lphc->self->hwndSelf,
(lphc->dwStyle & CBS_DROPDOWN)? (HMENU)0 : (HMENU)ID_CB_LISTBOX,
lphc->self->hInstance,
(LPVOID)lphc );
if( lphc->hWndLBox )
{
BOOL bEdit = TRUE;
lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT;
/*
* In Win95 look, the border fo the edit control is
* provided by the combobox
*/
if (TWEAK_WineLook == WIN31_LOOK)
lbeStyle |= WS_BORDER;
if( lphc->wState & CBF_EDIT )
{
if( lphc->dwStyle & CBS_OEMCONVERT )
lbeStyle |= ES_OEMCONVERT;
if( lphc->dwStyle & CBS_AUTOHSCROLL )
lbeStyle |= ES_AUTOHSCROLL;
if( lphc->dwStyle & CBS_LOWERCASE )
lbeStyle |= ES_LOWERCASE;
else if( lphc->dwStyle & CBS_UPPERCASE )
lbeStyle |= ES_UPPERCASE;
lphc->hWndEdit = CreateWindowExA(0,
editName,
NULL,
lbeStyle,
lphc->textRect.left, lphc->textRect.top,
lphc->textRect.right - lphc->textRect.left,
lphc->textRect.bottom - lphc->textRect.top,
lphc->self->hwndSelf,
(HMENU)ID_CB_EDIT,
lphc->self->hInstance,
NULL );
if( !lphc->hWndEdit )
bEdit = FALSE;
}
if( bEdit )
{
/*
* If the combo is a dropdown, we must resize the control to fit only
* the text area and button. To do this, we send a dummy resize and the
* WM_WINDOWPOSCHANGING message will take care of setting the height for
* us.
*/
if( CB_GETTYPE(lphc) != CBS_SIMPLE )
{
CBForceDummyResize(lphc);
}
TRACE(combo,"init done\n");
return wnd->hwndSelf;
}
ERR(combo, "edit control failure.\n");
} else ERR(combo, "listbox failure.\n");
} else ERR(combo, "no owner for visible combo.\n");
/* CreateWindow() will send WM_NCDESTROY to cleanup */
return -1;
}
/***********************************************************************
* CBPaintButton
*
* Paint combo button (normal, pressed, and disabled states).
*/
static void CBPaintButton(
LPHEADCOMBO lphc,
HDC hdc,
RECT rectButton)
{
UINT x, y;
BOOL bBool;
HDC hMemDC;
HBRUSH hPrevBrush;
COLORREF oldTextColor, oldBkColor;
if( lphc->wState & CBF_NOREDRAW )
return;
hPrevBrush = SelectObject(hdc, GetSysColorBrush(COLOR_BTNFACE));
/*
* Draw the button background
*/
PatBlt( hdc,
rectButton.left,
rectButton.top,
rectButton.right-rectButton.left,
rectButton.bottom-rectButton.top,
PATCOPY );
if( (bBool = lphc->wState & CBF_BUTTONDOWN) )
{
DrawEdge( hdc, &rectButton, EDGE_SUNKEN, BF_RECT );
}
else
{
DrawEdge( hdc, &rectButton, EDGE_RAISED, BF_RECT );
}
/*
* Remove the edge of the button from the rectangle
* and calculate the position of the bitmap.
*/
InflateRect( &rectButton, -2, -2);
x = (rectButton.left + rectButton.right - CBitWidth) >> 1;
y = (rectButton.top + rectButton.bottom - CBitHeight) >> 1;
hMemDC = CreateCompatibleDC( hdc );
SelectObject( hMemDC, hComboBmp );
oldTextColor = SetTextColor( hdc, GetSysColor(COLOR_BTNFACE) );
oldBkColor = SetBkColor( hdc, CB_DISABLED(lphc) ? RGB(128,128,128) :
RGB(0,0,0) );
BitBlt( hdc, x, y, CBitWidth, CBitHeight, hMemDC, 0, 0, SRCCOPY );
SetBkColor( hdc, oldBkColor );
SetTextColor( hdc, oldTextColor );
DeleteDC( hMemDC );
SelectObject( hdc, hPrevBrush );
}
/***********************************************************************
* CBPaintText
*
* Paint CBS_DROPDOWNLIST text field / update edit control contents.
*/
static void CBPaintText(
LPHEADCOMBO lphc,
HDC hdc,
RECT rectEdit)
{
INT id, size = 0;
LPSTR pText = NULL;
if( lphc->wState & CBF_NOREDRAW ) return;
/* follow Windows combobox that sends a bunch of text
* inquiries to its listbox while processing WM_PAINT. */
if( (id = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
{
size = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
if( (pText = HeapAlloc( GetProcessHeap(), 0, size + 1)) )
{
SendMessageA( lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText );
pText[size] = '\0'; /* just in case */
} else return;
}
if( lphc->wState & CBF_EDIT )
{
if( CB_HASSTRINGS(lphc) ) SetWindowTextA( lphc->hWndEdit, pText ? pText : "" );
if( lphc->wState & CBF_FOCUSED )
SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
}
else /* paint text field ourselves */
{
HBRUSH hPrevBrush = 0;
HDC hDC = hdc;
if( !hDC )
{
if ((hDC = GetDC(lphc->self->hwndSelf)))
{
HBRUSH hBrush = SendMessageA( lphc->owner,
WM_CTLCOLORLISTBOX,
hDC, lphc->self->hwndSelf );
hPrevBrush = SelectObject( hDC,
(hBrush) ? hBrush : GetStockObject(WHITE_BRUSH) );
}
}
if( hDC )
{
UINT itemState;
HFONT hPrevFont = (lphc->hFont) ? SelectObject(hDC, lphc->hFont) : 0;
/*
* Give ourselves some space.
*/
InflateRect( &rectEdit, -1, -1 );
if ( (lphc->wState & CBF_FOCUSED) &&
!(lphc->wState & CBF_DROPPED) )
{
/* highlight */
FillRect( hDC, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
SetBkColor( hDC, GetSysColor( COLOR_HIGHLIGHT ) );
SetTextColor( hDC, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
itemState = ODS_SELECTED | ODS_FOCUS;
}
else
itemState = 0;
if( CB_OWNERDRAWN(lphc) )
{
DRAWITEMSTRUCT dis;
HRGN clipRegion;
/*
* Save the current clip region.
* To retrieve the clip region, we need to create one "dummy"
* clip region.
*/
clipRegion = CreateRectRgnIndirect(&rectEdit);
if (GetClipRgn(hDC, clipRegion)!=1)
{
DeleteObject(clipRegion);
clipRegion=(HRGN)NULL;
}
if ( lphc->self->dwStyle & WS_DISABLED )
itemState |= ODS_DISABLED;
dis.CtlType = ODT_COMBOBOX;
dis.CtlID = lphc->self->wIDmenu;
dis.hwndItem = lphc->self->hwndSelf;
dis.itemAction = ODA_DRAWENTIRE;
dis.itemID = id;
dis.itemState = itemState;
dis.hDC = hDC;
dis.rcItem = rectEdit;
dis.itemData = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA,
(WPARAM)id, 0 );
/*
* Clip the DC and have the parent draw the item.
*/
IntersectClipRect(hDC,
rectEdit.left, rectEdit.top,
rectEdit.right, rectEdit.bottom);
SendMessageA(lphc->owner, WM_DRAWITEM,
lphc->self->wIDmenu, (LPARAM)&dis );
/*
* Reset the clipping region.
*/
SelectClipRgn(hDC, clipRegion);
}
else
{
ExtTextOutA( hDC,
rectEdit.left + 1,
rectEdit.top + 1,
ETO_OPAQUE | ETO_CLIPPED,
&rectEdit,
pText ? pText : "" , size, NULL );
if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
DrawFocusRect( hDC, &rectEdit );
}
if( hPrevFont )
SelectObject(hDC, hPrevFont );
if( !hdc )
{
if( hPrevBrush )
SelectObject( hDC, hPrevBrush );
ReleaseDC( lphc->self->hwndSelf, hDC );
}
}
}
if (pText)
HeapFree( GetProcessHeap(), 0, pText );
}
/***********************************************************************
* CBPaintBorder
*/
static void CBPaintBorder(
HWND hwnd,
LPHEADCOMBO lphc,
HDC hdc)
{
RECT clientRect;
if (CB_GETTYPE(lphc) != CBS_SIMPLE)
{
GetClientRect(hwnd, &clientRect);
}
else
{
CopyRect(&clientRect, &lphc->textRect);
InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
}
DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
}
/***********************************************************************
* COMBO_EraseBackground
*/
static LRESULT COMBO_EraseBackground(
HWND hwnd,
LPHEADCOMBO lphc,
HDC hParamDC)
{
HBRUSH hBkgBrush;
RECT clientRect;
HDC hDC;
hDC = (hParamDC) ? hParamDC
: GetDC(hwnd);
/*
* Calculate the area that we want to erase.
*/
if (CB_GETTYPE(lphc) != CBS_SIMPLE)
{
GetClientRect(hwnd, &clientRect);
}
else
{
CopyRect(&clientRect, &lphc->textRect);
InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
}
hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
hDC, hwnd);
if( !hBkgBrush )
hBkgBrush = GetStockObject(WHITE_BRUSH);
FillRect(hDC, &clientRect, hBkgBrush);
if (!hParamDC)
ReleaseDC(hwnd, hDC);
return TRUE;
}
/***********************************************************************
* COMBO_Paint
*/
static LRESULT COMBO_Paint(LPHEADCOMBO lphc, HDC hParamDC)
{
PAINTSTRUCT ps;
HDC hDC;
hDC = (hParamDC) ? hParamDC
: BeginPaint( lphc->self->hwndSelf, &ps);
if( hDC && !(lphc->wState & CBF_NOREDRAW) )
{
HBRUSH hPrevBrush, hBkgBrush;
hBkgBrush = SendMessageA( lphc->owner, WM_CTLCOLORLISTBOX,
hDC, lphc->self->hwndSelf );
if( !hBkgBrush )
hBkgBrush = GetStockObject(WHITE_BRUSH);
hPrevBrush = SelectObject( hDC, hBkgBrush );
/*
* In non 3.1 look, there is a sunken border on the combobox
*/
if (TWEAK_WineLook != WIN31_LOOK)
{
CBPaintBorder(CB_HWND(lphc), lphc, hDC);
}
if( !IsRectEmpty(&lphc->buttonRect) )
{
CBPaintButton(lphc, hDC, lphc->buttonRect);
}
if( !(lphc->wState & CBF_EDIT) )
{
/*
* The text area has a border only in Win 3.1 look.
*/
if (TWEAK_WineLook == WIN31_LOOK)
{
HPEN hPrevPen = SelectObject( hDC, GetSysColorPen(COLOR_WINDOWFRAME) );
Rectangle( hDC,
lphc->textRect.left, lphc->textRect.top,
lphc->textRect.right - 1, lphc->textRect.bottom - 1);
SelectObject( hDC, hPrevPen );
}
CBPaintText( lphc, hDC, lphc->textRect);
}
if( hPrevBrush )
SelectObject( hDC, hPrevBrush );
}
if( !hParamDC )
EndPaint(lphc->self->hwndSelf, &ps);
return 0;
}
/***********************************************************************
* CBUpdateLBox
*
* Select listbox entry according to the contents of the edit control.
*/
static INT CBUpdateLBox( LPHEADCOMBO lphc )
{
INT length, idx, ret;
LPSTR pText = NULL;
idx = ret = LB_ERR;
length = CB_GETEDITTEXTLENGTH( lphc );
if( length > 0 )
pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1);
TRACE(combo,"\t edit text length %i\n", length );
if( pText )
{
if( length ) GetWindowTextA( lphc->hWndEdit, pText, length + 1);
else pText[0] = '\0';
idx = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
(WPARAM)(-1), (LPARAM)pText );
if( idx == LB_ERR ) idx = 0; /* select first item */
else ret = idx;
HeapFree( GetProcessHeap(), 0, pText );
}
/* select entry */
SendMessageA( lphc->hWndLBox, LB_SETCURSEL, (WPARAM)idx, 0 );
if( idx >= 0 )
{
SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)idx, 0 );
/* probably superfluous but Windows sends this too */
SendMessageA( lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)idx, 0 );
}
return ret;
}
/***********************************************************************
* CBUpdateEdit
*
* Copy a listbox entry to the edit control.
*/
static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
{
INT length;
LPSTR pText = NULL;
TRACE(combo,"\t %i\n", index );
if( index == -1 )
{
length = CB_GETEDITTEXTLENGTH( lphc );
if( length )
{
if( (pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1)) )
{
GetWindowTextA( lphc->hWndEdit, pText, length + 1 );
index = SendMessageA( lphc->hWndLBox, LB_FINDSTRING,
(WPARAM)(-1), (LPARAM)pText );
HeapFree( GetProcessHeap(), 0, pText );
}
}
}
if( index >= 0 ) /* got an entry */
{
length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
if( length )
{
if( (pText = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1)) )
{
SendMessageA( lphc->hWndLBox, LB_GETTEXT,
(WPARAM)index, (LPARAM)pText );
SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, (LPARAM)pText );
SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
HeapFree( GetProcessHeap(), 0, pText );
}
}
}
}
/***********************************************************************
* CBDropDown
*
* Show listbox popup.
*/
static void CBDropDown( LPHEADCOMBO lphc )
{
INT index;
RECT rect;
TRACE(combo,"[%04x]: drop down\n", CB_HWND(lphc));
CB_NOTIFY( lphc, CBN_DROPDOWN );
/* set selection */
lphc->wState |= CBF_DROPPED;
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
{
index = CBUpdateLBox( lphc );
if( !(lphc->wState & CBF_CAPTURE) ) CBUpdateEdit( lphc, index );
}
else
{
index = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
if( index == LB_ERR ) index = 0;
SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)index, 0 );
SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
}
/* now set popup position */
GetWindowRect( lphc->self->hwndSelf, &rect );
/*
* If it's a dropdown, the listbox is offset
*/
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
rect.left += COMBO_EDITBUTTONSPACE();
SetWindowPos( lphc->hWndLBox, HWND_TOP, rect.left, rect.bottom,
lphc->droppedRect.right - lphc->droppedRect.left,
lphc->droppedRect.bottom - lphc->droppedRect.top,
SWP_NOACTIVATE | SWP_NOREDRAW);
if( !(lphc->wState & CBF_NOREDRAW) )
RedrawWindow( lphc->self->hwndSelf, NULL, 0, RDW_INVALIDATE |
RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
ShowWindow( lphc->hWndLBox, SW_SHOWNA );
}
/***********************************************************************
* CBRollUp
*
* Hide listbox popup.
*/
static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
{
HWND hWnd = lphc->self->hwndSelf;
CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
{
TRACE(combo,"[%04x]: roll up [%i]\n", CB_HWND(lphc), (INT)ok );
/* always send WM_LBUTTONUP? */
SendMessageA( lphc->hWndLBox, WM_LBUTTONUP, 0, (LPARAM)(-1) );
if( lphc->wState & CBF_DROPPED )
{
RECT rect;
lphc->wState &= ~CBF_DROPPED;
ShowWindow( lphc->hWndLBox, SW_HIDE );
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
{
INT index = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
CBUpdateEdit( lphc, index );
rect = lphc->buttonRect;
}
else
{
if( bButton )
{
UnionRect( &rect,
&lphc->buttonRect,
&lphc->textRect);
}
else
rect = lphc->textRect;
bButton = TRUE;
}
if( bButton && !(lphc->wState & CBF_NOREDRAW) )
RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
CB_NOTIFY( lphc, CBN_CLOSEUP );
}
}
}
/***********************************************************************
* COMBO_FlipListbox
*
* Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
*/
BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL bRedrawButton )
{
if( lphc->wState & CBF_DROPPED )
{
CBRollUp( lphc, TRUE, bRedrawButton );
return FALSE;
}
CBDropDown( lphc );
return TRUE;
}
/***********************************************************************
* COMBO_GetLBWindow
*
* Edit control helper.
*/
HWND COMBO_GetLBWindow( WND* pWnd )
{
LPHEADCOMBO lphc = CB_GETPTR(pWnd);
if( lphc ) return lphc->hWndLBox;
return 0;
}
/***********************************************************************
* CBRepaintButton
*/
static void CBRepaintButton( LPHEADCOMBO lphc )
{
InvalidateRect(CB_HWND(lphc), &lphc->buttonRect, TRUE);
UpdateWindow(CB_HWND(lphc));
}
/***********************************************************************
* COMBO_SetFocus
*/
static void COMBO_SetFocus( LPHEADCOMBO lphc )
{
if( !(lphc->wState & CBF_FOCUSED) )
{
if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
SendMessageA( lphc->hWndLBox, LB_CARETON, 0, 0 );
if( lphc->wState & CBF_EDIT )
SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
lphc->wState |= CBF_FOCUSED;
if( !(lphc->wState & CBF_EDIT) )
{
InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
}
CB_NOTIFY( lphc, CBN_SETFOCUS );
}
}
/***********************************************************************
* COMBO_KillFocus
*/
static void COMBO_KillFocus( LPHEADCOMBO lphc )
{
HWND hWnd = lphc->self->hwndSelf;
if( lphc->wState & CBF_FOCUSED )
{
SendMessageA( hWnd, WM_LBUTTONUP, 0, (LPARAM)(-1) );
CBRollUp( lphc, FALSE, TRUE );
if( IsWindow( hWnd ) )
{
if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
SendMessageA( lphc->hWndLBox, LB_CARETOFF, 0, 0 );
lphc->wState &= ~CBF_FOCUSED;
/* redraw text */
if( lphc->wState & CBF_EDIT )
SendMessageA( lphc->hWndEdit, EM_SETSEL, (WPARAM)(-1), 0 );
else
{
InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
}
CB_NOTIFY( lphc, CBN_KILLFOCUS );
}
}
}
/***********************************************************************
* COMBO_Command
*/
static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd )
{
if( lphc->wState & CBF_EDIT && lphc->hWndEdit == hWnd )
{
/* ">> 8" makes gcc generate jump-table instead of cmp ladder */
switch( HIWORD(wParam) >> 8 )
{
case (EN_SETFOCUS >> 8):
TRACE(combo,"[%04x]: edit [%04x] got focus\n",
CB_HWND(lphc), lphc->hWndEdit );
if( !(lphc->wState & CBF_FOCUSED) ) COMBO_SetFocus( lphc );
break;
case (EN_KILLFOCUS >> 8):
TRACE(combo,"[%04x]: edit [%04x] lost focus\n",
CB_HWND(lphc), lphc->hWndEdit );
/* NOTE: it seems that Windows' edit control sends an
* undocumented message WM_USER + 0x1B instead of this
* notification (only when it happens to be a part of
* the combo). ?? - AK.
*/
COMBO_KillFocus( lphc );
break;
case (EN_CHANGE >> 8):
CB_NOTIFY( lphc, CBN_EDITCHANGE );
CBUpdateLBox( lphc );
break;
case (EN_UPDATE >> 8):
CB_NOTIFY( lphc, CBN_EDITUPDATE );
break;
case (EN_ERRSPACE >> 8):
CB_NOTIFY( lphc, CBN_ERRSPACE );
}
}
else if( lphc->hWndLBox == hWnd )
{
switch( HIWORD(wParam) )
{
case LBN_ERRSPACE:
CB_NOTIFY( lphc, CBN_ERRSPACE );
break;
case LBN_DBLCLK:
CB_NOTIFY( lphc, CBN_DBLCLK );
break;
case LBN_SELCHANGE:
case LBN_SELCANCEL:
TRACE(combo,"[%04x]: lbox selection change [%04x]\n",
CB_HWND(lphc), lphc->wState );
/* do not roll up if selection is being tracked
* by arrowkeys in the dropdown listbox */
if( (lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP) )
CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
else lphc->wState &= ~CBF_NOROLLUP;
CB_NOTIFY( lphc, CBN_SELCHANGE );
InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
/* fall through */
case LBN_SETFOCUS:
case LBN_KILLFOCUS:
/* nothing to do here since ComboLBox always resets the focus to its
* combo/edit counterpart */
break;
}
}
return 0;
}
/***********************************************************************
* COMBO_ItemOp
*
* Fixup an ownerdrawn item operation and pass it up to the combobox owner.
*/
static LRESULT COMBO_ItemOp( LPHEADCOMBO lphc, UINT msg,
WPARAM wParam, LPARAM lParam )
{
HWND hWnd = lphc->self->hwndSelf;
TRACE(combo,"[%04x]: ownerdraw op %04x\n", CB_HWND(lphc), msg );
#define lpIS ((LPDELETEITEMSTRUCT)lParam)
/* two first items are the same in all 4 structs */
lpIS->CtlType = ODT_COMBOBOX;
lpIS->CtlID = lphc->self->wIDmenu;
switch( msg ) /* patch window handle */
{
case WM_DELETEITEM:
lpIS->hwndItem = hWnd;
#undef lpIS
break;
case WM_DRAWITEM:
#define lpIS ((LPDRAWITEMSTRUCT)lParam)
lpIS->hwndItem = hWnd;
#undef lpIS
break;
case WM_COMPAREITEM:
#define lpIS ((LPCOMPAREITEMSTRUCT)lParam)
lpIS->hwndItem = hWnd;
#undef lpIS
break;
}
return SendMessageA( lphc->owner, msg, lphc->self->wIDmenu, lParam );
}
/***********************************************************************
* COMBO_GetText
*/
static LRESULT COMBO_GetText( LPHEADCOMBO lphc, UINT N, LPSTR lpText)
{
if( lphc->wState & CBF_EDIT )
return SendMessageA( lphc->hWndEdit, WM_GETTEXT,
(WPARAM)N, (LPARAM)lpText );
/* get it from the listbox */
if( lphc->hWndLBox )
{
INT idx = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0 );
if( idx != LB_ERR )
{
LPSTR lpBuffer;
INT length = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN,
(WPARAM)idx, 0 );
/* 'length' is without the terminating character */
if( length >= N )
lpBuffer = (LPSTR) HeapAlloc( GetProcessHeap(), 0, length + 1 );
else
lpBuffer = lpText;
if( lpBuffer )
{
INT n = SendMessageA( lphc->hWndLBox, LB_GETTEXT,
(WPARAM)idx, (LPARAM)lpBuffer );
/* truncate if buffer is too short */
if( length >= N )
{
if (N && lpText) {
if( n != LB_ERR ) memcpy( lpText, lpBuffer, (N>n) ? n+1 : N-1 );
lpText[N - 1] = '\0';
}
HeapFree( GetProcessHeap(), 0, lpBuffer );
}
return (LRESULT)n;
}
}
}
return 0;
}
/***********************************************************************
* CBResetPos
*
* This function sets window positions according to the updated
* component placement struct.
*/
static void CBResetPos(
LPHEADCOMBO lphc,
LPRECT rectEdit,
LPRECT rectLB,
BOOL bRedraw)
{
BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
/* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
* sizing messages */
if( lphc->wState & CBF_EDIT )
SetWindowPos( lphc->hWndEdit, 0,
rectEdit->left, rectEdit->top,
rectEdit->right - rectEdit->left,
rectEdit->bottom - rectEdit->top,
SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
SetWindowPos( lphc->hWndLBox, 0,
rectLB->left, rectLB->top,
rectLB->right - rectLB->left,
rectLB->bottom - rectLB->top,
SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
if( bDrop )
{
if( lphc->wState & CBF_DROPPED )
{
lphc->wState &= ~CBF_DROPPED;
ShowWindow( lphc->hWndLBox, SW_HIDE );
}
if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
RedrawWindow( lphc->self->hwndSelf, NULL, 0,
RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
}
}
/***********************************************************************
* COMBO_Size
*/
static void COMBO_Size( LPHEADCOMBO lphc )
{
CBCalcPlacement(lphc->self->hwndSelf,
lphc,
&lphc->textRect,
&lphc->buttonRect,
&lphc->droppedRect);
CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
}
/***********************************************************************
* COMBO_Font
*/
static void COMBO_Font( LPHEADCOMBO lphc, HFONT hFont, BOOL bRedraw )
{
/*
* Set the font
*/
lphc->hFont = hFont;
/*
* Propagate to owned windows.
*/
if( lphc->wState & CBF_EDIT )
SendMessageA( lphc->hWndEdit, WM_SETFONT, (WPARAM)hFont, bRedraw );
SendMessageA( lphc->hWndLBox, WM_SETFONT, (WPARAM)hFont, bRedraw );
/*
* Redo the layout of the control.
*/
if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
{
CBCalcPlacement(lphc->self->hwndSelf,
lphc,
&lphc->textRect,
&lphc->buttonRect,
&lphc->droppedRect);
CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
}
else
{
CBForceDummyResize(lphc);
}
}
/***********************************************************************
* COMBO_SetItemHeight
*/
static LRESULT COMBO_SetItemHeight( LPHEADCOMBO lphc, INT index, INT height )
{
LRESULT lRet = CB_ERR;
if( index == -1 ) /* set text field height */
{
if( height < 32768 )
{
lphc->editHeight = height;
/*
* Redo the layout of the control.
*/
if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
{
CBCalcPlacement(lphc->self->hwndSelf,
lphc,
&lphc->textRect,
&lphc->buttonRect,
&lphc->droppedRect);
CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
}
else
{
CBForceDummyResize(lphc);
}
lRet = height;
}
}
else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
lRet = SendMessageA( lphc->hWndLBox, LB_SETITEMHEIGHT,
(WPARAM)index, (LPARAM)height );
return lRet;
}
/***********************************************************************
* COMBO_SelectString
*/
static LRESULT COMBO_SelectString( LPHEADCOMBO lphc, INT start, LPCSTR pText )
{
INT index = SendMessageA( lphc->hWndLBox, LB_SELECTSTRING,
(WPARAM)start, (LPARAM)pText );
if( index >= 0 )
{
if( lphc->wState & CBF_EDIT )
CBUpdateEdit( lphc, index );
else
{
InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
}
}
return (LRESULT)index;
}
/***********************************************************************
* COMBO_LButtonDown
*/
static void COMBO_LButtonDown( LPHEADCOMBO lphc, LPARAM lParam )
{
POINT pt;
BOOL bButton;
HWND hWnd = lphc->self->hwndSelf;
pt.x = LOWORD(lParam);
pt.y = HIWORD(lParam);
bButton = PtInRect(&lphc->buttonRect, pt);
if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
(bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
{
lphc->wState |= CBF_BUTTONDOWN;
if( lphc->wState & CBF_DROPPED )
{
/* got a click to cancel selection */
lphc->wState &= ~CBF_BUTTONDOWN;
CBRollUp( lphc, TRUE, FALSE );
if( !IsWindow( hWnd ) ) return;
if( lphc->wState & CBF_CAPTURE )
{
lphc->wState &= ~CBF_CAPTURE;
ReleaseCapture();
}
}
else
{
/* drop down the listbox and start tracking */
lphc->wState |= CBF_CAPTURE;
CBDropDown( lphc );
SetCapture( hWnd );
}
if( bButton ) CBRepaintButton( lphc );
}
}
/***********************************************************************
* COMBO_LButtonUp
*
* Release capture and stop tracking if needed.
*/
static void COMBO_LButtonUp( LPHEADCOMBO lphc, LPARAM lParam )
{
if( lphc->wState & CBF_CAPTURE )
{
lphc->wState &= ~CBF_CAPTURE;
if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
{
INT index = CBUpdateLBox( lphc );
CBUpdateEdit( lphc, index );
}
ReleaseCapture();
}
if( lphc->wState & CBF_BUTTONDOWN )
{
lphc->wState &= ~CBF_BUTTONDOWN;
CBRepaintButton( lphc );
}
}
/***********************************************************************
* COMBO_MouseMove
*
* Two things to do - track combo button and release capture when
* pointer goes into the listbox.
*/
static void COMBO_MouseMove( LPHEADCOMBO lphc, WPARAM wParam, LPARAM lParam )
{
POINT pt;
RECT lbRect;
pt.x = LOWORD(lParam);
pt.y = HIWORD(lParam);
if( lphc->wState & CBF_BUTTONDOWN )
{
BOOL bButton;
bButton = PtInRect(&lphc->buttonRect, pt);
if( !bButton )
{
lphc->wState &= ~CBF_BUTTONDOWN;
CBRepaintButton( lphc );
}
}
GetClientRect( lphc->hWndLBox, &lbRect );
MapWindowPoints( lphc->self->hwndSelf, lphc->hWndLBox, &pt, 1 );
if( PtInRect(&lbRect, pt) )
{
lphc->wState &= ~CBF_CAPTURE;
ReleaseCapture();
if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc );
/* hand over pointer tracking */
SendMessageA( lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam );
}
}
/***********************************************************************
* ComboWndProc
*
* http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/ctrl/src/combobox_15.htm
*/
LRESULT WINAPI ComboWndProc( HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam )
{
LRESULT retvalue;
WND* pWnd = WIN_FindWndPtr(hwnd);
if( pWnd )
{
LPHEADCOMBO lphc = CB_GETPTR(pWnd);
TRACE(combo, "[%04x]: msg %s wp %08x lp %08lx\n",
pWnd->hwndSelf, SPY_GetMsgName(message), wParam, lParam );
if( lphc || message == WM_NCCREATE )
switch(message)
{
/* System messages */
case WM_NCCREATE:
retvalue = COMBO_NCCreate(pWnd, lParam);
goto END;
case WM_NCDESTROY:
COMBO_NCDestroy(lphc);
break;
case WM_CREATE:
retvalue = COMBO_Create(lphc, pWnd, lParam);
goto END;
case WM_PRINTCLIENT:
if (lParam & PRF_ERASEBKGND)
COMBO_EraseBackground(hwnd, lphc, wParam);
/* Fallthrough */
case WM_PAINT:
/* wParam may contain a valid HDC! */
retvalue = COMBO_Paint(lphc, wParam);
goto END;
case WM_ERASEBKGND:
retvalue = COMBO_EraseBackground(hwnd, lphc, wParam);
goto END;
case WM_GETDLGCODE:
retvalue = (LRESULT)(DLGC_WANTARROWS | DLGC_WANTCHARS);
goto END;
case WM_WINDOWPOSCHANGING:
retvalue = COMBO_WindowPosChanging(hwnd, lphc, (LPWINDOWPOS)lParam);
goto END;
case WM_SIZE:
if( lphc->hWndLBox &&
!(lphc->wState & CBF_NORESIZE) ) COMBO_Size( lphc );
retvalue = TRUE;
goto END;
case WM_SETFONT:
COMBO_Font( lphc, (HFONT16)wParam, (BOOL)lParam );
retvalue = TRUE;
goto END;
case WM_GETFONT:
retvalue = (LRESULT)lphc->hFont;
goto END;
case WM_SETFOCUS:
if( lphc->wState & CBF_EDIT )
SetFocus( lphc->hWndEdit );
else
COMBO_SetFocus( lphc );
retvalue = TRUE;
goto END;
case WM_KILLFOCUS:
#define hwndFocus ((HWND16)wParam)
if( !hwndFocus ||
(hwndFocus != lphc->hWndEdit && hwndFocus != lphc->hWndLBox ))
COMBO_KillFocus( lphc );
#undef hwndFocus
retvalue = TRUE;
goto END;
case WM_COMMAND:
retvalue = COMBO_Command( lphc, wParam, (HWND)lParam );
goto END;
case WM_GETTEXT:
retvalue = COMBO_GetText( lphc, (UINT)wParam, (LPSTR)lParam );
goto END;
case WM_SETTEXT:
case WM_GETTEXTLENGTH:
case WM_CLEAR:
case WM_CUT:
case WM_PASTE:
case WM_COPY:
if( lphc->wState & CBF_EDIT )
{
retvalue = SendMessageA( lphc->hWndEdit, message, wParam, lParam );
goto END;
}
retvalue = CB_ERR;
goto END;
case WM_DRAWITEM:
case WM_DELETEITEM:
case WM_COMPAREITEM:
case WM_MEASUREITEM:
retvalue = COMBO_ItemOp( lphc, message, wParam, lParam );
goto END;
case WM_ENABLE:
if( lphc->wState & CBF_EDIT )
EnableWindow( lphc->hWndEdit, (BOOL)wParam );
EnableWindow( lphc->hWndLBox, (BOOL)wParam );
retvalue = TRUE;
goto END;
case WM_SETREDRAW:
if( wParam )
lphc->wState &= ~CBF_NOREDRAW;
else
lphc->wState |= CBF_NOREDRAW;
if( lphc->wState & CBF_EDIT )
SendMessageA( lphc->hWndEdit, message, wParam, lParam );
SendMessageA( lphc->hWndLBox, message, wParam, lParam );
retvalue = 0;
goto END;
case WM_SYSKEYDOWN:
if( KEYDATA_ALT & HIWORD(lParam) )
if( wParam == VK_UP || wParam == VK_DOWN )
COMBO_FlipListbox( lphc, TRUE );
break;
case WM_CHAR:
case WM_KEYDOWN:
if( lphc->wState & CBF_EDIT )
retvalue = SendMessageA( lphc->hWndEdit, message, wParam, lParam );
else
retvalue = SendMessageA( lphc->hWndLBox, message, wParam, lParam );
goto END;
case WM_LBUTTONDOWN:
if( !(lphc->wState & CBF_FOCUSED) ) SetFocus( lphc->self->hwndSelf );
if( lphc->wState & CBF_FOCUSED ) COMBO_LButtonDown( lphc, lParam );
retvalue = TRUE;
goto END;
case WM_LBUTTONUP:
COMBO_LButtonUp( lphc, lParam );
retvalue = TRUE;
goto END;
case WM_MOUSEMOVE:
if( lphc->wState & CBF_CAPTURE )
COMBO_MouseMove( lphc, wParam, lParam );
retvalue = TRUE;
goto END;
/* Combo messages */
case CB_ADDSTRING16:
if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_ADDSTRING:
retvalue = SendMessageA( lphc->hWndLBox, LB_ADDSTRING, 0, lParam);
goto END;
case CB_INSERTSTRING16:
wParam = (INT)(INT16)wParam;
if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_INSERTSTRING:
retvalue = SendMessageA( lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
goto END;
case CB_DELETESTRING16:
case CB_DELETESTRING:
retvalue = SendMessageA( lphc->hWndLBox, LB_DELETESTRING, wParam, 0);
goto END;
case CB_SELECTSTRING16:
wParam = (INT)(INT16)wParam;
if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_SELECTSTRING:
retvalue = COMBO_SelectString( lphc, (INT)wParam, (LPSTR)lParam );
goto END;
case CB_FINDSTRING16:
wParam = (INT)(INT16)wParam;
if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_FINDSTRING:
retvalue = SendMessageA( lphc->hWndLBox, LB_FINDSTRING, wParam, lParam);
goto END;
case CB_FINDSTRINGEXACT16:
wParam = (INT)(INT16)wParam;
if( CB_HASSTRINGS(lphc) ) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_FINDSTRINGEXACT:
retvalue = SendMessageA( lphc->hWndLBox, LB_FINDSTRINGEXACT,
wParam, lParam );
goto END;
case CB_SETITEMHEIGHT16:
wParam = (INT)(INT16)wParam; /* signed integer */
case CB_SETITEMHEIGHT:
retvalue = COMBO_SetItemHeight( lphc, (INT)wParam, (INT)lParam);
goto END;
case CB_GETITEMHEIGHT16:
wParam = (INT)(INT16)wParam;
case CB_GETITEMHEIGHT:
if( (INT)wParam >= 0 ) /* listbox item */
{
retvalue = SendMessageA( lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
goto END;
}
retvalue = CBGetTextAreaHeight(hwnd, lphc);
goto END;
case CB_RESETCONTENT16:
case CB_RESETCONTENT:
SendMessageA( lphc->hWndLBox, LB_RESETCONTENT, 0, 0 );
InvalidateRect(CB_HWND(lphc), NULL, TRUE);
retvalue = TRUE;
goto END;
case CB_INITSTORAGE:
retvalue = SendMessageA( lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
goto END;
case CB_GETHORIZONTALEXTENT:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
goto END;
case CB_SETHORIZONTALEXTENT:
retvalue = SendMessageA( lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
goto END;
case CB_GETTOPINDEX:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
goto END;
case CB_GETLOCALE:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETLOCALE, 0, 0);
goto END;
case CB_SETLOCALE:
retvalue = SendMessageA( lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
goto END;
case CB_GETDROPPEDWIDTH:
if( lphc->droppedWidth )
{
retvalue = lphc->droppedWidth;
goto END;
}
retvalue = lphc->droppedRect.right - lphc->droppedRect.left;
goto END;
case CB_SETDROPPEDWIDTH:
if( (CB_GETTYPE(lphc) != CBS_SIMPLE) &&
(INT)wParam < 32768 ) lphc->droppedWidth = (INT)wParam;
retvalue = CB_ERR;
goto END;
case CB_GETDROPPEDCONTROLRECT16:
lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
if( lParam )
{
RECT r;
CBGetDroppedControlRect( lphc, &r );
CONV_RECT32TO16( &r, (LPRECT16)lParam );
}
retvalue = CB_OKAY;
goto END;
case CB_GETDROPPEDCONTROLRECT:
if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
retvalue = CB_OKAY;
goto END;
case CB_GETDROPPEDSTATE16:
case CB_GETDROPPEDSTATE:
retvalue = (lphc->wState & CBF_DROPPED) ? TRUE : FALSE;
goto END;
case CB_DIR16:
lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case CB_DIR:
retvalue = COMBO_Directory( lphc, (UINT)wParam,
(LPSTR)lParam, (message == CB_DIR));
goto END;
case CB_SHOWDROPDOWN16:
case CB_SHOWDROPDOWN:
if( CB_GETTYPE(lphc) != CBS_SIMPLE )
{
if( wParam )
{
if( !(lphc->wState & CBF_DROPPED) )
CBDropDown( lphc );
}
else
if( lphc->wState & CBF_DROPPED )
CBRollUp( lphc, FALSE, TRUE );
}
retvalue = TRUE;
goto END;
case CB_GETCOUNT16:
case CB_GETCOUNT:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETCOUNT, 0, 0);
goto END;
case CB_GETCURSEL16:
case CB_GETCURSEL:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETCURSEL, 0, 0);
goto END;
case CB_SETCURSEL16:
wParam = (INT)(INT16)wParam;
case CB_SETCURSEL:
lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
if( lphc->wState & CBF_SELCHANGE )
{
/* no LBN_SELCHANGE in this case, update manually */
InvalidateRect(CB_HWND(lphc), &lphc->textRect, TRUE);
lphc->wState &= ~CBF_SELCHANGE;
}
retvalue = lParam;
goto END;
case CB_GETLBTEXT16:
wParam = (INT)(INT16)wParam;
lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
case CB_GETLBTEXT:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
goto END;
case CB_GETLBTEXTLEN16:
wParam = (INT)(INT16)wParam;
case CB_GETLBTEXTLEN:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
goto END;
case CB_GETITEMDATA16:
wParam = (INT)(INT16)wParam;
case CB_GETITEMDATA:
retvalue = SendMessageA( lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
goto END;
case CB_SETITEMDATA16:
wParam = (INT)(INT16)wParam;
case CB_SETITEMDATA:
retvalue = SendMessageA( lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
goto END;
case CB_GETEDITSEL16:
wParam = lParam = 0; /* just in case */
case CB_GETEDITSEL:
if( lphc->wState & CBF_EDIT )
{
INT a, b;
retvalue = SendMessageA( lphc->hWndEdit, EM_GETSEL,
(wParam) ? wParam : (WPARAM)&a,
(lParam) ? lParam : (LPARAM)&b );
goto END;
}
retvalue = CB_ERR;
goto END;
case CB_SETEDITSEL16:
case CB_SETEDITSEL:
if( lphc->wState & CBF_EDIT )
{
retvalue = SendMessageA( lphc->hWndEdit, EM_SETSEL,
(INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
goto END;
}
retvalue = CB_ERR;
goto END;
case CB_SETEXTENDEDUI16:
case CB_SETEXTENDEDUI:
if( CB_GETTYPE(lphc) == CBS_SIMPLE )
{
retvalue = CB_ERR;
goto END;
}
if( wParam )
lphc->wState |= CBF_EUI;
else lphc->wState &= ~CBF_EUI;
retvalue = CB_OKAY;
goto END;
case CB_GETEXTENDEDUI16:
case CB_GETEXTENDEDUI:
retvalue = (lphc->wState & CBF_EUI) ? TRUE : FALSE;
goto END;
case (WM_USER + 0x1B):
WARN(combo, "[%04x]: undocumented msg!\n", hwnd );
}
retvalue = DefWindowProcA(hwnd, message, wParam, lParam);
goto END;
}
retvalue = CB_ERR;
END:
WIN_ReleaseWndPtr(pWnd);
return retvalue;
}